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X-Original-To: cryptography@metzdowd.com X-Original-To: cryptography@metzdowd.com Date: Thu, 15 Dec 2005 17:12:50 -0500 From: Jack Lloyd <lloyd@randombit.net> To: cryptography@metzdowd.com Mail-Followup-To: cryptography@metzdowd.com In-Reply-To: <3676F008-C5BA-47A3-B70C-558886BEB2A5@mac.com> Define fast - KASUMI is based heavily on MISTY1. In fact, during a fast scan of the KASUMI spec, I couldn't see anywhere obvious where it different from MISTY1 at all. As far as I know, I'm the only person who has even tried writing fast code for MISTY1, and the result is quite dog-slow compared to most other common ciphers (to pull some numbers out of the air: around 4.3 MB/sec on an 800 MHz Athlon, compared with 9.4 MB/sec from AES-128 and 15 MB/sec from 16-round RC5). Obviously you can do better on a faster processor (and I'm sure there are some cycles yet to be squeezed out of my MISTY1 code - there are many who can hand-optimize better than I), but I don't think MISTY1 (or KASUMI) will ever be very fast in software. Would a FPGA work instead? That seems like your best bet to me. -Jack On Thu, Dec 15, 2005 at 08:24:23AM -0500, james hughes wrote: > Hello list: > > I have research project that is looking for a fast -software- > implementation of the KASUMI block cipher. I have found many papers > on doing this in hardware, but nothing in software. While free is > better (as is beer), I will consider a purchase. > > FYI, KASUMI is the cryptographic engine of the 3GPP. > http://en.wikipedia.org/wiki/3gpp > > Thanks. > jim > > > --------------------------------------------------------------------- > The Cryptography Mailing List > Unsubscribe by sending "unsubscribe cryptography" to majordomo@metzdowd.com --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to majordomo@metzdowd.com
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